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EP1320114A3 - Hard base key unit - Google Patents

Hard base key unit Download PDF

Info

Publication number
EP1320114A3
EP1320114A3 EP02017784A EP02017784A EP1320114A3 EP 1320114 A3 EP1320114 A3 EP 1320114A3 EP 02017784 A EP02017784 A EP 02017784A EP 02017784 A EP02017784 A EP 02017784A EP 1320114 A3 EP1320114 A3 EP 1320114A3
Authority
EP
European Patent Office
Prior art keywords
key
hard base
plane
hole
hard
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP02017784A
Other languages
German (de)
French (fr)
Other versions
EP1320114A2 (en
Inventor
Akira Takagi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sunarrow Co Ltd
Original Assignee
Sunarrow Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sunarrow Co Ltd filed Critical Sunarrow Co Ltd
Publication of EP1320114A2 publication Critical patent/EP1320114A2/en
Publication of EP1320114A3 publication Critical patent/EP1320114A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2209/00—Layers
    • H01H2209/006—Force isolators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2209/00—Layers
    • H01H2209/01—Increasing rigidity; Anti-creep
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/054—Optical elements
    • H01H2219/062—Light conductor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/06—Actuators to avoid sticking in on position
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2229/00—Manufacturing
    • H01H2229/044—Injection moulding
    • H01H2229/048—Insertion moulding

Landscapes

  • Push-Button Switches (AREA)
  • Telephone Set Structure (AREA)

Abstract

A first object is to provide a key unit capable of preventing a problem that a key top gets under a key window frame of a casing of a movable telephone or the like during key pushing down, and capable of preventing floating of the key top and interferences with movements between keys in a narrow-pitch key board which cannot employ a key window frame. A second object is to provide a key unit of a novel thin structure, capable of eliminating a dual structure where an light guiding plate is superposed as a separate component. A hard base key unit comprises a hard base made of a hard resin plate and having a through hole on a plane thereof, a key pad made of a rubber-like elastic body film to cover the through hole 1 of the hard base, a switch thrusting projection formed integrally with the key pad on a plane of the key pad facing the inside of the through hole, and a key top made of a hard resin and provided at a position corresponding to the switch thrusting projection on the other plane of the key pad.
EP02017784A 2001-12-12 2002-08-12 Hard base key unit Withdrawn EP1320114A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001378152 2001-12-12
JP2001378152A JP2003178639A (en) 2001-12-12 2001-12-12 Hard base key unit

Publications (2)

Publication Number Publication Date
EP1320114A2 EP1320114A2 (en) 2003-06-18
EP1320114A3 true EP1320114A3 (en) 2005-02-09

Family

ID=19185956

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02017784A Withdrawn EP1320114A3 (en) 2001-12-12 2002-08-12 Hard base key unit

Country Status (5)

Country Link
US (1) US7250937B2 (en)
EP (1) EP1320114A3 (en)
JP (1) JP2003178639A (en)
CN (1) CN100489742C (en)
DE (1) DE02017784T1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7538286B2 (en) 2006-07-03 2009-05-26 Polymatech Co., Ltd. Key sheet and pushbutton switch

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7262379B2 (en) 2003-04-11 2007-08-28 Polymatech Co., Ltd. Key sheets and method of producing the same
JP4473538B2 (en) * 2003-04-11 2010-06-02 ポリマテック株式会社 Key sheet
JP4194887B2 (en) * 2003-06-10 2008-12-10 信越ポリマー株式会社 Pushbutton structure and manufacturing method of pushbutton structure
JP4625292B2 (en) * 2003-09-03 2011-02-02 ポリマテック株式会社 Key sheet and key sheet manufacturing method
JP4398738B2 (en) * 2004-01-09 2010-01-13 ポリマテック株式会社 Key sheet
JP4305212B2 (en) * 2004-02-18 2009-07-29 日本電気株式会社 Mobile phone and manufacturing method thereof
GB0403854D0 (en) * 2004-02-20 2004-03-24 Pelikon Ltd Switches
KR100878171B1 (en) * 2004-03-25 2009-02-20 신에츠 폴리머 가부시키가이샤 Cover member for push button switch and its manufacturing method
CN1934668B (en) * 2004-03-25 2010-11-24 信越聚合物株式会社 Cover member for push button switch and its manufacturing method
WO2005098884A1 (en) * 2004-04-05 2005-10-20 Sunarrow Limited Key unit with reinforcing plate
JPWO2005109460A1 (en) 2004-05-07 2008-03-21 サンアロー株式会社 Key unit with support frame
WO2005117047A1 (en) * 2004-05-28 2005-12-08 Sunarrow Ltd. Key unit with casing
JP4468096B2 (en) * 2004-07-20 2010-05-26 ポリマテック株式会社 Key sheet and key sheet manufacturing method
JP4679226B2 (en) * 2004-10-28 2011-04-27 ポリマテック株式会社 Cover sheet for pushbutton switch
US7525534B2 (en) * 2005-03-14 2009-04-28 Palm, Inc. Small form-factor keypad for mobile computing devices
US9142369B2 (en) 2005-03-14 2015-09-22 Qualcomm Incorporated Stack assembly for implementing keypads on mobile computing devices
CN100463088C (en) * 2005-04-26 2009-02-18 乐金电子（昆山）电脑有限公司 Button assembly and manufacturing method thereof
CN100452267C (en) * 2005-04-26 2009-01-14 佛山市顺德区顺达电脑厂有限公司 Button set
KR100692742B1 (en) 2005-05-13 2007-03-09 삼성전자주식회사 Keypad and Keypad Assembly with Light Guide Layer
ES2308358T3 (en) 2005-05-19 2008-12-01 Samsung Electronics Co., Ltd. KEYBOARD AND KEYBOARD ASSEMBLY.
KR100689392B1 (en) 2005-05-19 2007-03-02 삼성전자주식회사 Keypad and Keypad Assembly Using the Keypad
US7394030B2 (en) 2005-06-02 2008-07-01 Palm, Inc. Small form-factor keyboard using keys with offset peaks and pitch variations
JP4394047B2 (en) * 2005-08-05 2010-01-06 信越ポリマー株式会社 Cover member for key frame and push button switch
JP4698336B2 (en) * 2005-08-29 2011-06-08 ポリマテック株式会社 Key sheet with key top
US8989822B2 (en) 2006-09-08 2015-03-24 Qualcomm Incorporated Keypad assembly for use on a contoured surface of a mobile computing device
KR101228452B1 (en) * 2006-09-12 2013-01-31 엘지전자 주식회사 Keypad assembly and mobile terminal having it
JP2010511111A (en) * 2006-11-27 2010-04-08 コンティネンタル オートモーティブ システムズ ユーエス， インコーポレイティッド Reinforced key fob
US20080183133A1 (en) * 2007-01-30 2008-07-31 Animas Corporation Infusion pump keypad assembly and method for making the same
TWI432995B (en) * 2007-12-14 2014-04-01 High Tech Comp Corp Input device and handheld electronic device
JP4616897B2 (en) * 2008-05-01 2011-01-19 ポリマテック株式会社 Key sheet
CN101577186B (en) * 2008-05-09 2013-05-29 深圳富泰宏精密工业有限公司 Key and electronic device applying same
JP5086885B2 (en) * 2008-05-15 2012-11-28 信越ポリマー株式会社 Keypad with hard base and manufacturing method thereof
JP5440042B2 (en) * 2009-09-08 2014-03-12 日本電気株式会社 Key sheet module
US8350728B2 (en) 2010-04-23 2013-01-08 Hewlett-Packard Development Company, L.P. Keyboard with integrated and numeric keypad
JP5833452B2 (en) * 2012-01-05 2015-12-16 京セラ株式会社 Waterproof electronic equipment

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4732724A (en) * 1984-03-21 1988-03-22 Franz Sterner Process of making injection moldings and injection mold for carrying out the process
AT389398B (en) * 1984-06-20 1989-11-27 Sterner Franz CONTACT MAT
GB2251529A (en) * 1990-11-20 1992-07-08 Nokia Mobile Phones Ltd Outer case for a telephone
EP0747195A1 (en) * 1995-06-09 1996-12-11 Taisei Plas Co., Ltd. A method for assembling a control panel of an electronic apparatus
US5708428A (en) * 1996-12-10 1998-01-13 Ericsson Inc. Method and apparatus for providing backlighting for keypads and LCD panels
JPH1012089A (en) * 1996-06-24 1998-01-16 Tokai Rika Co Ltd Push switch
US5717429A (en) * 1996-04-03 1998-02-10 Texas Instruments Incorporated Low profile, light weight keyboard
EP0859388A2 (en) * 1997-02-18 1998-08-19 Sunarrow Co., Ltd. Illumination key and method of manufacture thereof
WO2000013396A1 (en) * 1998-08-31 2000-03-09 Siemens Aktiengesellschaft Top part of a housing for a communications terminal
EP1054420A1 (en) * 1999-05-18 2000-11-22 Molex Incorporated Keyboard for an electrical or electronic apparatus and method of making the same
EP1122753A2 (en) * 2000-01-31 2001-08-08 Basf Aktiengesellschaft Keyboard elements for mobile communication devices

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5900829A (en) * 1996-07-23 1999-05-04 Motorola, Inc. Method of and apparatus for detecting key actuations
US6677545B2 (en) * 1997-02-18 2004-01-13 Sunarrow Co., Ltd. Illumination key and method of manufacture
JP2000243178A (en) * 1998-12-25 2000-09-08 Yazaki Corp Display screen switch
KR100342959B1 (en) * 1998-12-31 2002-07-05 양윤홍 Keypad for cellular phone and method of manufacturing same
US6576856B2 (en) * 2000-03-24 2003-06-10 Polymatech Co., Ltd. Sheet shaped key top
JP3754268B2 (en) * 2000-04-07 2006-03-08 三洋電機株式会社 KEY INPUT DEVICE AND MOBILE PHONE WITH THE SAME
US6876837B2 (en) * 2000-04-21 2005-04-05 Hitachi Kokusai Electric Inc. Portable electronic equipment

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4732724A (en) * 1984-03-21 1988-03-22 Franz Sterner Process of making injection moldings and injection mold for carrying out the process
AT389398B (en) * 1984-06-20 1989-11-27 Sterner Franz CONTACT MAT
GB2251529A (en) * 1990-11-20 1992-07-08 Nokia Mobile Phones Ltd Outer case for a telephone
EP0747195A1 (en) * 1995-06-09 1996-12-11 Taisei Plas Co., Ltd. A method for assembling a control panel of an electronic apparatus
US5717429A (en) * 1996-04-03 1998-02-10 Texas Instruments Incorporated Low profile, light weight keyboard
JPH1012089A (en) * 1996-06-24 1998-01-16 Tokai Rika Co Ltd Push switch
US5708428A (en) * 1996-12-10 1998-01-13 Ericsson Inc. Method and apparatus for providing backlighting for keypads and LCD panels
EP0859388A2 (en) * 1997-02-18 1998-08-19 Sunarrow Co., Ltd. Illumination key and method of manufacture thereof
WO2000013396A1 (en) * 1998-08-31 2000-03-09 Siemens Aktiengesellschaft Top part of a housing for a communications terminal
EP1054420A1 (en) * 1999-05-18 2000-11-22 Molex Incorporated Keyboard for an electrical or electronic apparatus and method of making the same
EP1122753A2 (en) * 2000-01-31 2001-08-08 Basf Aktiengesellschaft Keyboard elements for mobile communication devices

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 05 30 April 1998 (1998-04-30) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7538286B2 (en) 2006-07-03 2009-05-26 Polymatech Co., Ltd. Key sheet and pushbutton switch

Also Published As

Publication number Publication date
CN100489742C (en) 2009-05-20
DE02017784T1 (en) 2004-04-15
EP1320114A2 (en) 2003-06-18
US7250937B2 (en) 2007-07-31
US20030109229A1 (en) 2003-06-12
JP2003178639A (en) 2003-06-27
CN1425970A (en) 2003-06-25

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